<a href="http://github.com/angular/angular.js/edit/master/docs/content/error/ng/areq.ngdoc" class="improve-docs btn btn-primary"><i class="icon-edit"> </i> Improve this doc</a><h1><code ng:non-bindable="">Bad Argument</code>
<div><span class="hint">error in component <code ng:non-bindable="">ng</code>
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<div><pre class="minerr-errmsg" error-display="Argument '{0}' is {1}">Argument '{0}' is {1}</pre>
<h2 id="description">Description</h2>
<div class="description"><div class="ng-page ng-areq-page"><p>AngularJS often asserts that certain values will be present and truthy using a
helper function. If the assertion fails, this error is thrown. To fix this problem,
make sure that the value the assertion expects is defined and truthy.</p>
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